We're grateful to have you here in the Roku Community, @Mmmiles22!
It is highly appreciated that you've reached out to us for further assistance regarding your TCL Roku TV being unable to power on. We'd be more than happy to assist you with this.
In this case, it would be highly effective to directly reach out to your TV's manufacturer which is the TCL Support as they will be the ones who can further assist you with this. We only support the operating software of your TV and this seems to be a hardware issue that can be sorted out by their Support.
You can also reach them by their Support contact number at 1 (877) 300-8837.
We hope you get everything sorted out soon and appreciate you bearing with us in the meantime.
Best regards,
Carly
Carly Y.
Roku Community Moderator